... 25 Signal Strength (continued) 19 Multiple Access (continued) ã Code Division Multiple Access (CDMA) (continued) Advantages ã Can carry up to three times the amount of data as TDMA ã Transmissions ... filter Either passes or rejects a signal based on frequency ã Types of filters Low-pass filter High-pass filter Bandpass filter 7 Amplifiers ã Increase the amplitude of an RF signal ã RF signals tend ... when receiving the signal ã Attenuation A loss of signal strength ã Multipath distortion As a radio signal is transmitted, the electromagnetic waves spread out 13 Multiple Access (continued) ã Time...
Ngày tải lên: 13/09/2012, 10:52
... ra- tionale after the initiation of NARP. Also carbapenem resistance rates of Pseudomonas spp and Acinetobacter spp decreased correlating with decreased consump- tion of carbapenems after NARP ... consump- tion calculated by two-tailed Spearman’s coefficient (r) for non-parametric correlations. A P value of less than 0.05 was regarded as significant. Software package STATA 9.0 (USA) was used ... The Impact of a Nationwide Antibiotic Restriction Program on Antibiotic Usage and Resistance against Nosocomial Pathogens in Turkey Adalet Altunsoy 1 , Cenk Aypak 2 , Alpay Azap 1 , Ưnder...
Ngày tải lên: 25/10/2012, 11:00
Shaping Tomorrow’s Business Leaders: Principles and Practices for a Model Business Ethics Program ppt
... 194-–197. Duane Windsor, A Required Foundation Course for Moral, Legal and Political Education,” and Laura Hartman and Edwin Hartman, “How to Teach Ethics: Assumptions and Arguments,” Journal of Business ... can be used as a model of a narrative story on how to create positive organizational cultures. Simple things like detailing a syllabus can be linked to contract models. A syllabus is an extant ... detrimental to a curriculum integration effort. Taking an alternative perspective can better assist in the integration, especially if a faculty member takes a broader view of himself as a part of a...
Ngày tải lên: 06/03/2014, 19:20
Evaluation of a reproductive health awareness program for adolescence in urban Tanzania-A quasi-experimental pre-test post-test research pptx
... about reproductive health matters based on literature review. The questionnaire was translated to Kiswahili as a lan- guage familiar to most Tanzanians. Data was gathered by an anonymous questionnaire. The ... evaluation of a school-based adolescent sexual heath intervention in rural Tanzania: MEMA kwa Vijana programme. Health Educ Res 2006, 22:500-512. 18. Todd J, Changalucha J, Ross D, Mosha F, Obasi ... 8:21 http://www.reproductive-health-journal.com/content/8/1/21 Page 9 of 9 and behavior about reproductive health before and after the program. Settings and samples Settings Dar es Salaam, the capital city of Tanzania, is divided into...
Ngày tải lên: 22/03/2014, 12:20
Analysis and practical implementation of a model for combined growth and metabolite production of lactic acid bacteria
... flame ionisation, peak integrator of Trivector). 3. Analysis and adaptation of the model of Nicolaă et al. (1993) Nicolaă et al. (1993) have constructed a dynamic model for the surface growth of ... outgrowth of microbial pathogens and spoilage organisms. The antimicrobial potential of LAB together with their status as Generally Regarded As Save (GRAS) organisms has motivated a lot of researchers ... used are selected carefully in order to be compliant with two basic aspect s of the model of Ni colaă et al. Firstly, the bacterial strain has a homofermentative metabolism and, as such, lactic acid...
Ngày tải lên: 05/05/2014, 08:44
Báo cáo sinh học: " Development of a model for marburgvirus based on severe-combined immunodeficiency mice" doc
... Accreditation of Laboratory Animal Care International. Mouse adaptation The general approach to adapt MARV to mice was based on virus passage in scid (BALB/c background) mice to avoid usage of suckling ... characterization of guinea pig-adapted vari- ants of Ebola virus. Virology 2000, 277(1):147-155. 34. Ebihara H, Takada A, Kobasa D, Jones S, Neumann G, Theriault S, Bray M, Feldmann H, Kawaoka Y: Molecular ... demonstrate which of the acquired mutations were important for adap- tation to mice. This scid mouse model of MARV infection has obvious uses as a model for analysis of therapeutics and candidate antibodies....
Ngày tải lên: 18/06/2014, 18:20
báo cáo hóa học: " The effects of a graduated aerobic exercise programme on cardiovascular disease risk factors in the NHS workplace: a randomised controlled trial" pdf
... 93(2):221-5. 33. Pearson TA, Mensah GA, Alexander RW, Anderson JL, Cannon RO, Criqui M: Markers of inflammation and cardiovascular dis- ease: application to clinical and public health practice: A statement ... training programme was not to directly target weight loss for a reduction of cardiovascular risk, but instead to improve physiological capacity, and biomark- ers of cardiovascular profile. In accordance ... Sanchez-Quesada JL, Covas MI, Ordonez-Llanos J, Marrugat J: Response of oxidative stress biomarkers to a 16-week aerobic physical activity program, and to acute physical activity, in healthy young men and women....
Ngày tải lên: 20/06/2014, 00:20
Báo cáo hóa học: " Development of a model for marburgvirus based on severe-combined immunodeficiency mice" docx
... characterization of guinea pig-adapted vari- ants of Ebola virus. Virology 2000, 277(1):147-155. 34. Ebihara H, Takada A, Kobasa D, Jones S, Neumann G, Theriault S, Bray M, Feldmann H, Kawaoka Y: Molecular ... Care International. Mouse adaptation The general approach to adapt MARV to mice was based on virus passage in scid (BALB/c background) mice to avoid usage of suckling mice to develop a lethal mouse- adapted ... interdig- itating cells were observed at day 4. Additionally, MARV antigen was observed in few scattered cortical cells of the zona fasciculata and zona reticularis at days 6 and 8. Use of the 'scid-adapted'...
Ngày tải lên: 20/06/2014, 01:20
Báo cáo khoa học: "Choice of a model for height-growth in maritime pine curves" pps
... Sprinz et al, 1987; Magnussen, 1993). A well- known advantage of these models is that they can provide an efficient summary of the data via a small number of meaningful parameters, ... examination of nearly 4 000 curves we observed that they generally have a regular sigmoidal shape, with an inflexion point at about 10 years and an asymptote between 20 and ... t=time): and the Chapman-Richards model (CR1) is: Number of parameters As the curves are sometimes rather short, estimating all 4 parameters for each curve may be wasteful (Day,...
Ngày tải lên: 08/08/2014, 19:21
Báo cáo khoa học: "Interpreting the variations in xylem sap flux density within the trunk of maritime pine (Pinus pinaster Ait.): application of a model for calculating water flows at tree and stand levels" pdf
... had a semi-cylindrical shape, and calculating the sap flux as the aver- age of the measurements made at a height of 6 m on a sample of ten trees at Car- rasqueira and ... Roumagnac P., Arruda Pacheco C., David J.S., Ferreira M.I., Pereira J.S., Tavares R., Transpiration of a 64-year-old Maritime Pine in Portugal: 1. Seasonal course of water ... resistance and capacitance from field measurements of water potential, stem shrinkage and tran- spiration on radiata pine and sitka spruce, respectively. The aim of this paper...
Ngày tải lên: 09/08/2014, 04:20
báo cáo khoa học: " Individual and setting level predictors of the implementation of a skin cancer prevention program: a multilevel analysis" docx
Ngày tải lên: 10/08/2014, 10:22
Báo cáo y học: "Development of a model of focal pneumococcal pneumonia in young rats" ppsx
Ngày tải lên: 11/08/2014, 10:23
Báo cáo sinh học: " Factors influencing the efficiency of a marker-assisted introgression programme in Merino sheep" ppt
Ngày tải lên: 14/08/2014, 13:22
Báo cáo khoa học: "A Model of Early Syntactic Development" docx
... English paraphrases of the actual PRISM productions. All variables are italicized; these may match against any symbol, but all occurrences of a variable -" ~'. ~,~atch to the same element. ... the order in which grammatical morphemes are mastered. Finally, AMBER learns gradually enough to provide a plausible explanation of the incremental nature of first language acquisition. Thus ... extra words, and transpositions), and each led to an associated alteration of the grammar. PST accounted for children's omission of content words and the gradual increase in utterance...
Ngày tải lên: 17/03/2014, 19:21
báo cáo sinh học:" Effectiveness of a training-of-trainers model in a HIV counseling and testing program in the Caribbean Region" pot
... Grenadines, and Surinam in 2003; to Barbados and the Bahamas in 2004; and to Anguilla, Antigua & Bar- buda, Dominica, Grenada, and Turks & Caicos in 2005. Clinical Skills Course Data from ... information about course participants and trainers. Drawing from this database, a telephone survey followed up on program- trained VCT providers; an external evaluation analyzed data on VCT trainers. Results: ... and the ways in which challenges were addressed – may be applicable in the implementation of any large-scale train- ing program, such as a national program where training is conducted regionally. One...
Ngày tải lên: 18/06/2014, 17:20
báo cáo sinh học:" Narrowing the gap between eye care needs and service provision: a model to dynamically regulate the flow of personnel through a multiple entry and exit training programme" pdf
... B1 A4 B1 A3 A3 A3 A3 A2 A2 A2 A2 A1 A1 A1 A1 Eye Car e Tr aining Modules Eye car e nur se Cataract sur geon Optometrist Ophthalmologist Entrants into Stage 1 of trainingFigure 2 Entrants ... simulating the model. This will allow for examination of a number of scenarios and the ability to include variables that may be unimportant ini- tially but be influential later in the programme. This ... policy to any stakeholder. A very wide range of scenarios can be considered and a selected option can be monitored and changed dynamically over time. Background Implementation of a model of human resource...
Ngày tải lên: 18/06/2014, 17:20
Báo cáo thú y: "Application of a pig ligated intestinal loop model for early Lawsonia intracellularis infection" doc
Ngày tải lên: 12/08/2014, 18:22